<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            height: 300px;
            width: 300px;
            border-radius: 50%;
            position: relative;
            left: 200px;
            top: 100px;
            background-color: black;
            background-image: radial-gradient(250px at 52px 16px,#fff,blue,rgb(2 2 87/62%));
            box-shadow: 9px 12px 20px rgb(35, 35, 55) ;
        }
        /* .bg{
            width: 173px;
            height: 20px;
            background-color: rgb(2,2,87);
            position: absolute;
            left: 128px;
            bottom: -20px;
            border-radius: 50%;
            box-shadow: 8px -10px 17px rgb(2, 2, 170);
        } */
    </style>
</head>
<body>
    <div class="box">
        <div class="bg"></div>
    </div>
</body>
</html>